Book cover protector



Oct. 20, 1936. WALRAVEN 2,057,986

BOOK COVERPROTEOTOR FilfJ-Jd July 15 1935 2 Sheets-Sheet 1 gwpmm Alba/"fT walraielx Oct. 20, 1936. A. T. WALRAVEN I I BOOK COVER PROTECTOR.

z Sheets-Sheet? Filed July 15, 1935' Patented Oct. 20, 1936 UNITEDSTATES PATENT OFFIQE Application July 15,

7 Claims.

This invention relates to new and useful improvements in book coverprotectors.

One object of the invention is to provide an improved protector formedof a rectangular sheet of material which may be readily applied to booksof various sizes. An important object of the .invention is to provide animproved protector wherein each tab which folds over one corner of thebook cover is arranged to be bent upon itself so as to give an increasedthickness of material and a stronger reinforcing at the corners.

A further object of the invention is to provide an improved one-pieceprotector which is so arranged that the various tabs and flaps may beformed by tearing along perforated guide lines which eliminates thenecessity of any cutting operation to fit the protector to a book cover.

Another object of the invention is to provide an improved protectorwhich is so constructed that a greater area thereof may be coated withan adhesive'whereby the elements of the protector may be more securelyfastened together and said protector'more adequately held on a bookcover, and also whereby said elements are less likely to become detachedin use.

Still another object of the invention is to providean improved protectorwhich is simple in construction and cheap in manufacture, and which maybe readily attached by a school child, the arrangement of the protectorbeing such that there is no danger of its being applied in the wrong wayto the cover.

A construction designed to carry out the invention will be hereinafterdescribed, together with other features of the invention.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accompanying drawings,in which an example of the invention is shown, and wherein:

Figure l is a face view of the outer side of a protector sheetconstructed in accordance with the invention.

Figure 2 is a partial View of the inner or reverse side of saidprotector, and showing the back tongue folded inwardly.

Figure 3 is a view, similar to Figure 2 and showing one of the sideflaps folded inwardly,

Figure 4 is a view, similar to Figure 3 showing the upper and lowerflaps folded inwardly,

Figure 5 is a similar view, showing the corner tabs folded inwardly overthe outer face of the corner of the protector,

Figure 6 is a partial view of the outer face of 1935, Serial No. 31,467

the protector with the flaps and tabs folded as in Figure 5,

Figure '7 is a View similar to Figure 6 and showing the next step,

Figure 8 is a similar view showing the edge of the corner tabs foldedinwardly over the side flap to complete the corner, and

Figure 9 is a view showing the side opposite to that in Figure 8 withthe corner complete.

In the drawings, the numeral III designates a sheet of heavy paper, orother suitable material from which the protector is made. At the top andbottom of the center of the sheet, a pair of diverging perforated linesI I are provided. These lines may be of any desired length. EX- tendingfrom the edge of each side and inwardly toward the center of the sheet,a plurality of parallel perforated lines I2 are similarly provided. Theouter face of each entire corner of the sheet is gummed or covered withsuitable adhesive I3, H

as clearly shown in Figure l and it is pointed out that the area of thegummed surface is a substantial increase over the usual protector ofthis type.

In fitting the protector to a book, the latter as indicated by thedotted lines A, is laid on' the sheet so that its corners B registerwith one of the perforated guide lines I2. The sheet is then torn alongthese perforated lines, as is indicated in Figure l. The sheet is alsotorn along the perforated lines I I. It is noted that in applying theprotector to the cover of a larger book, the cover of said book mayoverlap the inner ends of the lines I I and I2. In such case, the sheetneed not be tom the full length of the perforations of each line, butthe tear can stop in alinement with the edge of the cover.

The book is removed and the sheet I I] is turned over so that its innerface is uppermost as shown in Figure 2. The diverging tears along thelines II at the top and bottom of the sheet form top and bottom tonguesI4 which are folded inwardly (Figure 2). The book is then laid on thesheet so that its back rests on the tongues I4 which act to reinforcethe back. When the sheet has been torn along the lines I2, elongated endflaps M are formed and these flaps are folded inwardly over the bookcover boards, as shown in Figure 3. As clearly shown in this figure,tearing along the perforated lines II and I2 provide top and bottomflaps I5, as well as rectangular shaped corner tabs I6. It is pointedout that this folding exposes a portion of the gummed surface at the topand bottom of each end flap. After the end fiaps it have been foldeddown, the top and bottom flaps are folded inwardly thereover (Figure 4),being fastened thereto by the exposed gummed surface, the rectangulartabs I3 projecting outwardly, as shown. It is pointed out that when theflaps have been so folded, a portion l3 of the gummed surface I3 is onthe outer face of each corner, the remainder being on the inner side ofthe tabs 6.

The next step is to fold the corner tabs l6 inwardly over the outer faceof the corner of the sheet, as is clearly shown is Figures 5 and 6. Thiscauses the ungummed, or plain side of the tab to overlie the portion ofgummed surface I3 at the corner, whereby the tab may be secured thereto.The gummed portion l3 extends only substantially half the length of thetab (Figure 6) whereby only the half nearer the edge of the book coveris glued to said corner.

The inner or unfastened half of said tab I6 is then bent so as tooverlie itself, as shown in Figure 7. When so bent, the tab is dividedinto two triangular shaped reinforcing tabs which may be securedtogether by the gummed surface which is present on the tab Hi. It isnoted that when the tab is bent, the gummed surfaces on each of thetriangular reinforcing tabs formed thereby, lie contiguous to eachother. Thus, it will be seen that the innermost tab I! is secured to thecorner by the gummed surface l3 while the topmost tab I1 is secured tothe tab therebeneath.

After the tab l6 has been bent upon itself to form the reinforcing tabsl'l, it will be seen that a narrow strip l8 extends from the topmost tabbeyond the edge of the sheet. This strip, of course, has its innersurface gummed because it is an extension of the topmost tab [1. Thestrip at each corner is bent inwardly over the top and bottom flaps l5and are secured thereto, as is clearly shown in Figures 7 and 8. It willbe seen that the protector is securely attached and due to the increasedgummed surface is securely fastened thereto.

It is noted that the perforated lines H and [2 not only serve as guidelines in applying the cover but also eliminate the cutting operation,although in some cases it might be desirable to eliminate perforationsand merely provide printed guide lines along which the sheet may be cutto form the tongues, flaps and tabs. By bending the corner tabs uponthemselves, it will be seen that a triple thickness of material isprovided at each corner. This positively reinforces the corner andassures its lasting the life of the protector. The sheet after beingtorn or out along the lines II and [2 can be folded only the one way toapply it to a cover, which makes its application exceedingly simple. Theprotector comprises a single rectangular piece of material with aminimum of guide lines, which reduces the manufacturing cost. Therectangular corner tabs folded to overlie themselves provide anincreased reinforcing thickness without additional cost or trouble inapplying the protector. It is pointed out that when the perforations areemployed, the perforated lines which are not torn are covered due to theparticular folding of the end and top and bottom flaps, whereby there isno danger of said perforations being torn accidentally after theprotector has been applied. Thus, the additional unused perforations,which make for the adjustability of the protector to books of varioussizes, do not tend to weaken the strength of said protector.

What I claim and desire to secure by Letters Patent is:

l. A book protector having flaps along its top, bottom and outer edges,tabs at each corner of the protector, said flaps being folded inwardlyto enclose the covers of a book, each tab being folded outward over theouter face of the corner and then being folded upon itself to reinforcethe corner, after which said tab is folded inwardly over the adjacentflap and secured thereto.

2. A book protector having flaps along its top, bottom and outer edges,tabs at each corner of the protector, said flaps being folded inwardlyto enclose the covers of a book, each tab being folded outward over theouter face of the corner and then being folded upon itself to form aprojecting strip which is folded inwardly over the adjacent flap andsecured thereto.

3. A book protector having flaps along its top, bottom and outer edges,rectangular tabs at each corner of the protector, said flaps beingfolded inwardly to enclose the covers of a book, each tab being folded'outward so as to be contiguous to the outer face of the corner, said tabthen being folded upon itself to provide a triple thickness of materialat the corners.

4. A book protector having flaps along its top, bottom and outer edges,rectangular tabs at each corner of the protector, said flaps beingfolded inwardly to enclose the covers of a book, each tab being foldedoutward so as to be contiguous to the outer face of the corner, said tabthen being folded upon itself to provide a triple thickness of materialat the corners, said folding of the tab providing a narrow strip whichis folded inwardly and secured to the adjacent flap.

5. A book protector having flaps-along its top, bottom and outer edges,rectangular tabs at each corner of the protector, said flaps beingfolded inwardly to enclose the covers of a book, each tab being foldedoutward so as to be contiguous to the outer face of the corner and beingsecured to said face, said tab then being folded upon itself, the foldedsections being fastened together whereby a triple thickness of materialis provided at the corner.

6. A book protector having flaps along its top, bottom and outer edges,rectangular tabs at each corner of the protector, said flaps beingfolded inwardly to enclose the covers of a book, each tab being foldedoutward so as to be contiguous to the outer face of the corner and beingsecured to said face, said tab then being folded upon itself, the foldedsections being fastened together whereby a triple thickness of materialis provided at the corner, the folding of said tab providing a narrowstrip which is arranged to be folded inwardly and secured to theadjacent top or bottom flap.

'7. A book protector having flaps along its top, bottom and outer edges,tabs at each corner of the protector, said flaps being folded inwardlyto enclose the covers of a book, each tab being folded outward over theouter face of the corner and then being folded upon itself to reinforcethe corner.

ALBERT T. WALRAVEN.

